Clinical and genetic characterization of a large Dutch family with primary focal dystonia.

Autor: Contarino MF; Department of Neurology and Clinical Neurophysiology, Academic Medical Centre, Amsterdam, The Netherlands., Berger-Plantinga E, Foncke EM, Ritz K, Mellema J, Baas F, Speelman JD, Tijssen MA
Jazyk: angličtina
Zdroj: Movement disorders : official journal of the Movement Disorder Society [Mov Disord] 2008 Oct 30; Vol. 23 (14), pp. 1998-2003.
DOI: 10.1002/mds.22206
Abstrakt: We describe a large family with a primary focal dystonia from a small Dutch village on a former island. Twenty-four individuals spanning three generations were examined by two movement-disorder neurologists. Two other movement-disorder neurologists evaluated the videos independently. Subjects were classified as "affected," "possibly affected," or "not affected." A diagnosis was defined if all the neurologists agreed on the definition. Eight definitely affected and four possibly affected subjects were detected. Clinical presentation consisted of mild cranio-cervical-brachial dystonia. Mean age at onset was 45.5 years (range, 39-56). Mean BFMDRS motor score was 4.4 (range, 1-8). Mean TWSTRS score (part I) was 11.3 (range, 8-23). Mutations in DYT1 gene and in the epsilon-sarcoglycan (SGCE) genes were not detected. We could not find linkage to the dominant DYT6, DYT7, DYT13, or the recessive DYT16 loci. The identification and accurate clinical evaluation of large dystonia families not linked to known genes is crucial for further advancement in molecular genetic characterization of focal dystonia.
((c) 2008 Movement Disorder Society.)
Databáze: MEDLINE
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